If he had, would your actions have been any different? Do you think you could reasonably argue a class action suit on behalf of muffinkind effectively in a court of law? Do you own a Hammer of Discipline?

yes.
muffins are tasty, so if he did insult them should be charged with statement of false ideas (hes been banned for that already so why not) and if he really dose hate muffins then he will be trained to love them so much he forgets to insult them and begins attempting(and failing) to prove the non-existence of gravity (preferable by chucking himself off a cliff).

It's not your grey-zone muffins, or even ozone muffins we are worried about. The responsible citizens of this fine nation that I represent are concerned about the anonymous nature of these powerful muffins, whether good or bad. We demand they come forth and identify themselves and their caloric values, lest innocent pastry eaters become obese and incapable of fitting in an airplane coach seat.

If the muffins are bran and provide society with beneficial fiber, then they should have nothing to fear. If however, they are double chocolate fudge muffins, it is our government's responsibility to secure these dangerous baked goods (and possibly sell them to third-world countries for oil drilling rights).